CVE-2023-28874Public exploitNetwork attack vector

User redirection via unchecked login destination

Published Dec 9, 2023 · Updated Aug 2, 2024

Open redirect in Seafile 9.0.6 allows remote attackers to send users to arbitrary sites through the login endpoint's next parameter. The /accounts/login endpoint accepts the untrusted next value as the post-authentication destination without a URL security check or destination allowlist. Exploitation requires a user to open the crafted URL and complete login, after which the browser leaves Seafile for an attacker-chosen site without directly altering Seafile data.

CVSS severity6.1
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in Seafile 9.0.6 allows remote attackers to send users to arbitrary sites through the login endpoint's next parameter. The /accounts/login endpoint accepts the untrusted next value as the post-authentication destination without a URL security check or destination allowlist. Exploitation requires a user to open the crafted URL and complete login, after which the browser leaves Seafile for an attacker-chosen site without directly altering Seafile data.

The record

CVE
CVE-2023-28874
Published
Dec 9, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-601
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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